ECE :: Power Electronics
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A single phase full wave regulator feeds R-L load. The best gating signal is
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A 3 phase induction motor is fed by a 3 phase ac regulator to change the stator voltage. The variation in speed will be more if
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A thyristor has internal power dissipation of 40W and is operated at an ambient temperature of 20°C. If thermal resistance is 1.6° C/W, the junction temperature is
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In a single phase dual converter, a1, and a2 are firing angles of the two converters. Then
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The waveshape of output voltage of half bridge inverter is
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A 3 phase induction motor is controlled by voltage and frequency control such that the ratio V/f is constant. At 50 Hz, the speed is 1440 rpm. At 25 Hz, the speed is likely to be
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The gate current required to turn on an SCR is